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Passinwind

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Posts posted by Passinwind

  1. 1 minute ago, dmccombe7 said:

    Nice basses. What are they as i don't recognise them. 

    Not at all surprising, it's all obscure and/or one off stuff. L-R: Marco Bass Guitars SC5 prototype, Crescent Moon fretless, BSX Model 2000 EUB.

    I've personally organized quite a few Talkbass "Get-Togethers" over the years, and traveled as far as 2500 miles to attend others. Most of ours are free for the attendees, with varying degrees of vendor and "rock star" player participation. The picture I posted is from last year's Seattle event, which I think drew around 60-70 players. One had the option of catered food and beer, or not. And that beer in cans is not even available at the brewpub the event was held in, BTW.

     

    • Like 1
  2. 3 hours ago, Mykesbass said:

    Saw the Temperance Movement last night, great gig, brilliant front man and every song had groove and feel to it. Bass player is probably better known around here from his work with Jamiroquai, and I must admit, I was a little surprised by his pedigree.

    What really stood out for me was just how much energy and drive he created without much physical effort - i.e. not digging in.

    Now I know this is good technique, but I've never mastered it. Having seen what Nick could do I think it is time to turn the amp up and give it another go!

    You might find it worthwhile to play around with a ramp, which makes digging in pretty much physically impossible. In my case it hardly made any difference though, since I've always played with an extremely light touch anyway.

  3. 5 minutes ago, Bigwan said:

    Yes please! I'll PM you my email address. 

    Have a fairly simple starting point laid out in LTspice and the curves look along the right lines, but I bow to your superior knowledge! 

    I really enjoy helping other DIY'ers work through Spice modeling, and that's actually a big part of how I came to do this open source thing. Essentially, a friend dropped a working model in my lap, and I revised and adapted it to a DIY friendly format.

    There are links in my Talkbass thread to some interesting prior art as well: https://www.talkbass.com/threads/the-passinwind-open-source-preamp.1259692/#post-19536322

  4. 7 hours ago, Bigwan said:

    -12dB/oct was my thinking 

    I think that's a good call. If you haven't already, you might want to take a look at my (non commercial, completely free) open source onboard preamp design on Talkbass. I'd be happy to send you the LTSpice model to play around with, but the schematic is already available in the project WIKI over there. Here are max treble cut curves for one particular build:

    PW3B_LPF_v4_TrebCut.jpg

     

    But I've found that how you set up resonant overshoot/damping at the response knee makes a great deal of difference in play feel, and there are quite a few other interesting nuances to dive into. Looking forward to seeing and hearing what you come up with.

    • Thanks 1
  5. On 2/5/2018 at 06:16, Bigwan said:

    This lunchtime I've mostly been modelling HPF and LPF filter blocks in LTSpice... As you were...

    Any feeling on LPF filter range? Looking at 700Hz - 14.5kHz at the minute.

    At what slope?

     I once started in on a standalone variable HPF design, which I gave to a German friend to develop as he saw fit. That was years ago though, not sure if I can even remember who it was. All my DIY amp builds over the last few years have had one, but it has always been tightly integrated with all the pre-existing rolloffs of various other stages in the amps. LTSpice is great for modeling that sort of thing.

  6. On 1/27/2018 at 10:11, stevie said:

    I'm not messing around with cheap tweeters this time round. I’m using a top-of-the range Celestion 1” neo (the one above the model used in the QSC K-series and the one used by Duke Lejeune in  his multi-thousand dollar hi-fi cabs) on an asymmetrical CD horn and crossing over at 1.5kHz. I’ve already designed the crossover, although I still have to tweak it. It’s complex and won’t be cheap, but this is a no-compromise box – so it has to be right. This will be a genuine FRFR design. You’ll be able to use it for keyboards, for PA, or as a monitor. I expect it to sound at least as good as the Yamaha PA cabs that are getting such a good press at the moment – but it will be designed specifically with the unique requirements of bass guitar sound reinforcement in mind.
     

    Nice. Duke provided a new prototype TC112 NAMM cab for the Marco Bass Guitar booth I was in this year. It used the same Celestion  compression driver he uses in his TC115 and TC118 cabs. The TC118 has always been among my very favorite bass cabs, and that compression driver plays a big part in that. There was also a secondary top-firing tweeter, meant to spill around the amp sitting over it. Seemed very far fetched, but it actually worked quite well. Very much looking forward to seeing you new iteration come to fruition!

  7. 4 hours ago, Muzz said:

    Jazz basses. All of them: the real ones, and the 250 million copies, from SX to Alembic or Fodera. Nope.

    Same here, but oddly enough the luthier I've been working with lately wanted nothing more than a decent Jazz Bass preamp that can fit under a stock control plate, so I guess I am learning to love them now!

    4 hours ago, Muzz said:

     

    Singlecuts are a sitting down bass to me.

    I never got the appeal of singlecuts at all until I actually tried the right one. Last thing in the world I expected to ever own. I almost never play sitting down, but the SC I own balances superbly while standing and even though it's a 5, it's actually lighter than any 4s I've owned in the last few decades. I absolutely love the initial look on the old country players' faces when I bring it out to jams, but many of them have warmed up to the look and especially the sound in time. And yes, it's full hippie sandwich/coffee table, all the time. Wouldn't have it any other way...Yel_wink.gif

  8. Those amps are infamous for the power stage bias drifting and creating distortion. If that is the case you should be able to hear the same symptom through other cabs. The fix is not terribly difficult, but is generally best left to a qualified technician since getting it wrong makes for a pretty expensive episode of releasing the magic smoke.

    • Like 1
  9. On 12/30/2017 at 07:50, Dazed said:

    I have a combo. It is a guitar combo. It has a valve pre and power amp. It’s tiny and I like it. 

    However it only has a single tone control, voiced for guitar so does little for bass. 

    Where do I learn more about modifying this to make it more bass appropriate? Or valve amp circuits in general. 

    Perhaps giving it a bass /mid/ treble instead of the single tone. I don’t know if that would even be possible. I suppose an alternative would be to use a preamp pedal but ideally I’d like everything to be in a single unit. 

    Or any recommendations for amp techs that could this kind of work could be an option although it’s not an expensive item at the moment and I don’t particularly want to make it one. 

    Thanks 🙂

     

    What amp, specifically?

  10. On 12/29/2017 at 05:07, chris_b said:

    Story so far. Music stands are "not good" but iPads are OK. The big acts have been using monitors for decades.

    So if I had the latest technology or a stage crew running the monitoring systems I'd be accepted, but because I'm a poor, penniless, amnesiac Luddite I get told I'm uncool!!

    Just turn down your hearing aids and play dumb. Works for me.

    • Like 1
  11. 10 or so. The number has been on a steady decline for several years (~100 a decade ago), and I am quite content with that. I only did the ten as favors to a few old and new friends. Many of my friends have ported to weekly jams at one person or another's house, so I still get out and play somewhere at least a couple of times a week, typically.

    Highlights? Various open mikes with former bandmates, and two big band hits as a sub in the community band I was in full time last year. I tend to sound much better and enjoy gigs much more when they're sporadic and don't feel so much like work.

    Next year: shooting for one a month on upright with the top players from my Friday night bluegrass jam crew, who did pretty well in their last gigging iteration a few years ago. Then hopefully a few jazz sub gigs and a few duo or trio hits with a singer-songwriter friend. Things are blowing up for me on the technical side, which historically has always been my "professional" side in the music business. If that means zero gigs, no worries at all.

     

     

     

  12. On 12/23/2017 at 00:44, Sean said:

    That’s absolute bonkers!

    What’s the set up? Master/slave?

    The top box holds the amp section and one set of transformers (outputs, I think), the other one holds the other (power) transformers. The builder posted a full schematic on DIYAudio.com, and also participated in a thread I posted on Talkbass. He did a "cute" little mono 500 watter before this one as well.

    • Like 1
  13. 5 hours ago, VTypeV4 said:

    Valves the size of big coffee jars requiring kV of HT are really something quite magical - even the most hardcore 'lightweight / class D' stalwarts on the forum can surely appreciate the beauty of these thing however impractical they may be. B|

    I love the glow of my 6L6 and KT88 / 6550 amps!

    Sure, I grew up working on tube stuff and have always greatly appreciated the aesthetics of Big Iron. And I love using them for guitar,  just not bass. Same as for so many other music production tools: great for others, not so much for myself. Vive la difference.

  14. On 11/20/2017 at 02:39, Bilbo said:

    That Dry Cleaner From Des Moines clip is a 12 bar blues taken far out but there is nothing random about it. It isn't a Motown pop song. It is a Jazz blues and goes where it goes. It was clearly a showcase for Brecker and Jaco and Don Alias let go a bit. The rest of the gig was incredibly tasteful. In France The Kiss On Main Street is pure Jameson. 

    Yep. I saw one of the concerts on that tour and it literally had 12,000 people on their feet. Not an easy ask for a jazz fusion band. Don't like it? Vote with your wallet. And vive la difference.

    • Like 1

  15. With all due respect to BFM (as well as to fEARful) designs, this list is about cab makers.



    AFAIK they both have authorized builder networks for those who prefer to buy a pre-built cab. In Dave Green's case:

    Gigmaster Soundworks: http://www.gigmaster.biz/

    Scabbey Road: http://scabbeyroad.com/

    Greenboy Audio: http://greenboyaudio.com/

    Speaker Hardware: http://www.speakerhardware.com/

    Tricky Audio: http://trickyaudio.wix.com/trickyaudio

    Perhaps Bill Fitzmaurice will jump in with links to his authorized builders, I don't have that information handy.

    And finally, a few more US builders: RevSound: https://revsound.myshopify.com/

    Boom Bass Cabinets: http://www.boombasscabinets.com/
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